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Midea MHC-V4W/D2N8-B

Midea MHC-V4W/D2N8-B
113 pages
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M thermal Mono Series
Commercial Air Conditioners
R32
Service
Manual
Midea CAC Confidential

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Midea MHC-V4W/D2N8-B Specifications

General IconGeneral
BrandMidea
ModelMHC-V4W/D2N8-B
CategoryAir Conditioner
LanguageEnglish

Summary

Part 1 General Information

Unit Capacities and External Appearance

Details unit capacities and visual appearance of the M thermal Mono Series.

Part 2 Component Layout and Refrigerant Circuits

Functional Component Layout

Identifies and illustrates the location of key components within the outdoor unit.

Piping Diagrams Overview

Illustrates the refrigerant and water piping configurations for system operation.

Refrigerant Flow Diagrams

Visualizes refrigerant flow under different operating modes like heating and cooling.

Part 3 Control

Unit Stop Operation Modes

Explains the reasons and conditions for the unit to stop operation.

Standby Mode Control

Details control logic for the unit when it is in standby mode.

Compressor Startup Control

Describes the compressor startup sequences and delays based on conditions.

Normal Operation Control

Explains how components are controlled during normal heating, cooling, and DHW operations.

System Protection Controls

Outlines safety features and error conditions that protect the system and compressor.

Special Control Functions

Covers specific operational modes like oil return, defrosting, and fast DHW.

Temperature Sensors in Control Functions

Details the function and placement of various temperature sensors and their role in control.

Part 4 Diagnosis and Troubleshooting

Outdoor Unit Electrical Control Box Layout

Shows the layout of electrical components within the outdoor unit's control box.

Outdoor Unit PCBs Identification

Identifies the main PCBs for the hydronic and refrigerant systems.

Error Code Table

Lists all error codes, their descriptions, and where they are displayed.

Troubleshooting Procedures

Provides step-by-step procedures for diagnosing and resolving common issues.

5 Appendix to Part 4

Temperature Sensor Resistance Characteristics

Provides resistance values for temperature sensors at various temperatures.

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